184 DR. F. MUELLER ON AUSTRALIAN ACACIA. 
inter semina valde contracta, loculis vix 4" latis. Semina longitudi- 
nalia subolivacea ovata leviter compressa 22''' longa utrinque areolato- 
impressa. Strophiolum minutum fulvidum, funiculo recto. 
Speciminum tropicorum legumina nondum vidi, conveniunt autem cum 
aliis ab equite Mitchell in Australia orientali extratropica collectis. 
70. ACACIA EXCELSA (Benth. in Mitch. Austr. Subtrop. p. 225.—Acacia 
pterocarpa, Ferd. Mueller, MSS.). Arborescens, ramulis angulatis, 
phyllodiis falcato-lanceolatis subopacis tenui-coriaceis acutis sessilibus 
plurinerviis imperfecte reticulato-venosis supra basin minute glan- 
duligeris, pedunculis axillaribus solitariis monocephalis phyllodio 
pluries brevioribus, leguminibus stipitatis subcoriaceis compressis 
oblongo-linearibus angustissime alatis inter semina plus minusve con- 
tractis indehiscentibus, seminibus estrophiolatis ovatis leviter com- 
pressis nitidulo-nigris, areolis non impressis. 
In virgultis Brigalow Scrub circum planities Peak Downs, No. 36. 
Arbor minor. Cortez nigrescens rugosus frustulosus. Phyllodia viridia 
11-2" longa, 3-5'" lata. Pedunculi circiter semunciales. Flores ignoti. 
Legumina bipollicaria v. breviora, circiter 3’” lata, non distincte venosa. 
Semina 2'" vix metientia. 
A. multinervie et A. excelsæ finitima. | 
рг. Mueller's specimens are in fruit, Col. Mitchell’s in flower; but 
they appear to belong to the same species. The phyllodia are precisely 
the same, so is the inflorescence ; for in Dr. Mueller's specimen the 
peduncles are not always solitary. Col. Mitchell notes that it is a large 
forest tree, Dr. Mueller found it a small tree ; but that might depend 
upon locality.—G. B.) 
71. ACACIA HEMIGNOSTA, n. sp. Glabra, ramulis tenuibus junioribus 
angulatis, phyllodiis tenuicoriaceis subglaucis lanceolato-oblongis 
obtusis leviter eurvatis in basin longe angustatis subtrinerviis creber- 
rime venulosis supra basin minute glanduligeris, pedunculis tenuibus 
axillaribus monocephalis solitariis phyllodio pluries brevioribus v. ter- 
minalibus racemum constituentibus, capitulis parvis multifloris, sepalis 
paulo puberulis perangustis liberis corolla parum brevioribus, legumi- 
nibus dilute fuscis chartaceis elongato-oblongis complanatis marginatis 
stipitatis indistincte venosis ad suturas flexuosis, seminibus rotundis 
leviter compressis estrophiolatis conspicue circulariter areolatis opacis 
squalide fuscis. 
Ad flumen Albert sinus Carpentarie, No 34. Ad fluvium Victoris, 
No. 87. Gilbert River, Roper River, 
Frutex v. arbuscula. Phyllodia 14-4" longa. Racemi terminales inferne 
non raro foliati. Capitula vix pisi magnitudine. Legumina 3-pol- 
liearia vel breviora, 3-5'" lata. Semina vix Z” metientia. 
Huc probabiliter referenda est Acacia illa hemignosta ab illustri Ben- 
tham sub Acacia melanorylon l. c. indicata olim ad sinum Cambridge 
